RTL buzzer ? or leds

Hi i wish to have a buzzer or leds flash when RTL is activated. Anyone have any idea how to do this… would be really useful

Thanks

Dave

[quote=“mrfunk”]Hi i wish to have a buzzer or leds flash when RTL is activated. Anyone have any idea how to do this… would be really useful

Thanks

Dave[/quote]
Would be nice to know, why the quad is ignoring me, as a rtl has been activated